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31. 发明专利

DE68902342D1 未知
公开(公告)号：DE68902342D1
公开(公告)日：1992-09-10
申请号：DE68902342
申请日：1989-03-24
申请人： GOODYEAR TIRE & RUBBER
发明人： WIDEMAN LAWSON GIBSON , CASTNER KENNETH FLOYD
IPC分类号： C08L15/02 , C08C19/12 , C08C19/32 , C08F8/20 , C08L21/00

32. 发明专利

NO163961B 未知
公开(公告)号：NO163961B
公开(公告)日：1990-05-07
申请号：NO831672
申请日：1983-05-11
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD
IPC分类号： E21B43/22 , C09K8/588 , C08F220/54

33. 发明专利

BR8904309A 未知
公开(公告)号：BR8904309A
公开(公告)日：1990-04-17
申请号：BR8904309
申请日：1989-08-28
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD , BELL ANTHONY JOSEPH , GLENN KIMBERLY MARIA
IPC分类号： C08F36/04 , C08F4/60 , C08F4/69 , C08F4/78 , C08F36/06 , C08F136/06
摘要： High vinyl polybutadiene rubber is utilized in a variety of applications. For instance, high vinyl polybutadiene is utilized in tire tread rubber compositions because it provides both good traction and rolling resistance. The present invention discloses a technique for synthesizing high vinyl polybutadiene utilizing a molybdenum catalyst system. This molybdenum catalyst system can be utilized in aliphatic solvents with high yields of about 75% being attained. The molybdenum catalyst systems of this invention are comprised of (a) a molybdenum containing compound which is prepared by modifying molybdenum pentachloride, molybdenum trichloride, or molybdenum tetrachloride with an alkyl carboxylic acid or an aryl carboxylic; and (b) an aluminum containing compound which is prepared by modifying a trialkyl aluminum compound with a phenol. The molecular weight of the high vinyl polybutadiene being prepared can be reduced by modifying the trialkyl aluminum compound with an allylphenol, such as 2-allylphenol.

34. 发明专利

AU4090989A SYNTHESIS OF HIGH VINYL POLYBUTADIENE UTILIZING A MOLYBDENUM CATALYST SYSTEM 未知
公开(公告)号：AU4090989A
公开(公告)日：1990-03-08
申请号：AU4090989
申请日：1989-08-30
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD , GLENN KIMBERLY MARIA , BELL ANTHONY JOSEPH
IPC分类号： C08F36/04 , C08F4/60 , C08F4/69 , C08F4/78 , C08F36/06 , C08F136/06 , C08F4/62
摘要： High vinyl polybutadiene rubber is utilized in a variety of applications. For instance, high vinyl polybutadiene is utilized in tire tread rubber compositions because it provides both good traction and rolling resistance. The present invention discloses a technique for synthesizing high vinyl polybutadiene utilizing a molybdenum catalyst system. This molybdenum catalyst system can be utilized in aliphatic solvents with high yields of about 75% being attained. The molybdenum catalyst systems of this invention are comprised of (a) a molybdenum containing compound which is prepared by modifying molybdenum pentachloride, molybdenum trichloride, or molybdenum tetrachloride with an alkyl carboxylic acid or an aryl carboxylic; and (b) an aluminum containing compound which is prepared by modifying a trialkyl aluminum compound with a phenol. The molecular weight of the high vinyl polybutadiene being prepared can be reduced by modifying the trialkyl aluminum compound with an allylphenol, such as 2-allylphenol.

35. 发明专利

BR8704819A 未知
公开(公告)号：BR8704819A
公开(公告)日：1988-05-17
申请号：BR8704819
申请日：1987-09-18
申请人： GOODYEAR TIRE & RUBBER
发明人： BELL ANTHONY JOSEPH , HALASA ADEL FARHAN , CASTNER KENNETH FLOYD , BALOGH GEORGE FRANK
IPC分类号： C08F8/18 , C08C19/12 , C08C19/42 , C08C19/44 , C08F8/20 , C08F8/34 , C08G81/02
摘要： Metals from Groups I and II of the periodic table are commonly used to initiate the polymerization of conjugated diolefin monomers into polymers. The polymers formed in such polymerizations are terminated with the metal used to initiate the polymerization and are sometimes referred to as living polymers. Reactive end groups can be affixed to the chain ends of such polymers by utilizing the process of this invention. Such reactive end groups can subsequently be reacted with the backbone of other polymer chains. This results in the formation of a polymer having a reduced number of dangling chain ends. The functionalizing agents which can be utilized in the preparation of such polymers include hexachlorocyclopentadiene, tetraalkylthiuram disulfides, and chlorinated phenyl fulvenes.

36. 发明专利

BR8301901A 未知
公开(公告)号：BR8301901A
公开(公告)日：1983-12-20
申请号：BR8301901
申请日：1983-04-14
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD , KUZMA LEONARD JOSEPH
IPC分类号： C08F4/00 , C08F4/60 , C08F4/70 , C08F36/00 , C08F136/06 , C08F236/06

37. 发明专利

DK215783A 未知
公开(公告)号：DK215783A
公开(公告)日：1983-11-15
申请号：DK215783
申请日：1983-05-13
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD
IPC分类号： E21B43/22 , C09K8/588 , E21B , C08F

38. 发明专利

DK215783D0 未知
公开(公告)号：DK215783D0
公开(公告)日：1983-05-13
申请号：DK215783
申请日：1983-05-13
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD
IPC分类号： E21B43/22 , C09K8/588 , E21B43

39. 发明专利

DE69926159D1 未知
公开(公告)号：DE69926159D1
公开(公告)日：2005-08-25
申请号：DE69926159
申请日：1999-02-09
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD
IPC分类号： C08K5/105 , C08K5/13 , C08K5/37 , C08K5/103 , C08L21/00
摘要： Various benefits can be attained by utilizing trans-1,4-polybutadiene in tire rubber compounds. For instance, the green strength of tire rubber compounds can be improved by including trans-1,4-polybutadiene therein. The inclusion of trans-1,4-polybutadiene in tire rubber compounds is also beneficial because it is strain crystallizable. However, due to its high melting point, it is normally necessary to heat trans-1,4-polybutadiene in order for it to be processed using conventional mixing equipment. This heating step is typically carried out by storing the trans-1,4-polybutadiene in a "hothouse" for a few days prior to its usage. During this storage period, the polymer typically undergoes undesirable oxidative crosslinking which is caused by residual cobalt catalyst and leads to gelation. In fact, the gelation can render the trans-1,4-polybutadiene unprocessable. This invention is based upon the unexpected finding that certain substituted benzoic acids, such as salicylic acid, thiosalicylic acid and acetylsalicylic acid, will act as metal deactivators in polymers. By utilizing the technique of this invention, residual cobalt and/or other metals, such as nickel, that act as prooxidants in polymers, such as trans-1,4-polybutadiene, can be deactivated. This invention more specifically discloses a stabilized trans-1,4-polybutadiene composition which is comprised of trans-1,4-polybutadiene and a substituted benzoic acid selected from the group consisting of salicylic acid, thiosalicylic acid and acetylsalicylic acid.

40. 发明专利

DE60104382D1 未知
公开(公告)号：DE60104382D1
公开(公告)日：2004-08-26
申请号：DE60104382
申请日：2001-10-23
申请人： GOODYEAR TIRE & RUBBER
发明人： CASTNER KENNETH FLOYD
IPC分类号： C08F4/602 , C08F4/70 , C08F36/00 , C08F136/06
摘要： This invention is based upon the unexpected discovery that elastomeric trans-1,4-polybutadiene can be made by utilizing a catalyst system that is comprised of an organocobalt compound, an organoaluminum compound, a para-alkyl substituted phenol, and ortho-phenyl phenol wherein the molar ratio of the para-substituted phenol to the organoaluminum compound is within the range of about 1.2:1 to about 1.8:1, and wherein the molar ratio of the ortho-phenyl phenol to the organoaluminum compound is within the range of about 0.7:1 to about 1.3:1. Accordingly, the elastomeric trans-1,4-polybutadiene made by the process of this invention does not need to be heated, such as in a hot-house, before being used in making rubber stocks. This invention more specifically discloses a process for synthesizing elastomeric trans-1-4-polybutadiene by polymerizing 1,3-butadiene monomer in the presence of a catalyst system that is comprised of an organocobalt compound, an organoaluminum compound, a para-alkyl substituted phenol, and ortho-phenyl phenol, wherein the molar ratio of the para-substituted phenol to the organoaluminum compound is within the range of about 1.2:1 to about 1.8:1, and wherein the molar ratio of the ortho-phenyl phenol to the organoaluminum compound is within the range of about 0.7:1 to about 1.3:1.

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